Home/Filings/4/0001127602-25-012218
4//SEC Filing

McCarthy Michelle M 4

Accession 0001127602-25-012218

CIK 0001049502other

Filed

Apr 16, 8:00 PM ET

Accepted

Apr 17, 1:51 PM ET

Size

14.4 KB

Accession

0001127602-25-012218

Insider Transaction Report

Form 4
Period: 2025-04-15
McCarthy Michelle M
VP & Chief Accounting Officer
Transactions
  • Exercise/Conversion

    Restricted Stock Unit

    2025-04-159685,422.414 total
    Common Stock (968 underlying)
  • Exercise/Conversion

    Common Stock

    2025-04-15+968968 total
  • Tax Payment

    Common Stock

    2025-04-15$68.48/sh608$41,6361,466 total
  • Award

    Restricted Stock Unit

    2025-04-15+5,209.8849,526.298 total
    Common Stock (5,209.884 underlying)
  • Exercise/Conversion

    Common Stock

    2025-04-15+1,1062,074 total
  • Exercise/Conversion

    Restricted Stock Unit

    2025-04-151,1064,316.414 total
    Common Stock (1,106 underlying)
Footnotes (4)
  • [F1]Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of MKS Instruments, Inc.
  • [F2]These shares were withheld by MKS Instruments, Inc. to satisfy the tax withholding obligations triggered by the vesting of RSUs and do not represent a discretionary trade by the reporting person.
  • [F3]These RSUs vest in three equal annual installments commencing on April 15, 2025, provided that if, in any vesting year, April 15th is not a business day, such vesting shall occur on the next business day.
  • [F4]These RSUs vest in three equal annual installments commencing on April 15, 2026, provided that if, in any vesting year, April 15th is not a business day, such vesting shall occur on the next business day.

Issuer

MKS INSTRUMENTS INC

CIK 0001049502

Entity typeother

Related Parties

1
  • filerCIK 0001732461

Filing Metadata

Form type
4
Filed
Apr 16, 8:00 PM ET
Accepted
Apr 17, 1:51 PM ET
Size
14.4 KB